A Football Player Leaps at 3

A football player leaps at 3.0 m/s toward a second football player,who is at the time of the collision moving at 0.5 m/s toward the first player.After the collision,the two players move together at 1.2 m/s.If the originally stationary player's mass is 175 kg,what is the other's mass?

A) 185 kg
B) 119 kg
C) 165 kg
D) 68 kg

Correct Answer:

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